Material:the product made by high quality natural blue crystal,s925 sterling silver plated,copper,chain length 45cm,Please try not to let acc essory near with alkali liquor and other caustic liquids. Keep it in a seal and dry package can maintain the brightness of the accessory.Design:This delicate and highly refined necklace features a sleek, unique pretty design - a symbol of everlasting love. It will add simple, modern elegance to any day or evening look..Compact and lightweight,easy to dress up.Match with suitable apparel for different occasion. Special design and unique structure, a popular item. A fantastic jewelry for your going party or banquet,wonderful gift for you and your friendsGift:this necklace is the best gift for your wife,girlfriend,mother,daughter,father,sister and friends.It is also the ideal handmade gift for wedding,Valentine's Day,Mother's day Christmas,baby birth,birthday,graduation and other memorial day. Usage: A Perfect Gift for Christmas Day, Valentine's Day, Birthday, Anniversaries. Match with Suitable Apparel for DifferentOccasion:anniversary, engagement, party, meeting, dating, wedding, birthdays or everyday clothing, etc.